You sure ya putting the phone in Dfu mode and iTunes puts it in recovery mode?

I just did, and got a step further. But now itunes gangs at "preparing iphone for restore. Nothing happens, and the iphone isn't changed at all.. I get it out of dfu and it is still ob 6.1.2 all the same. Thoughts?

I have used it to get out of recovery yes. My phone then boots into 6.1.2 as if nothing has occured. So itunes can't access the phone to restore it it seems. Not in recovery, nor dfu, not anything.

When in recovery mode, I get "an unknown error has happened, (error 11)" when in DFU it hangs at "preparing iphone for restore".

Hard one this..

It's booting back into 6.1.2 from DFU? Haven't seen that one before.

Would you mind posting your restore logs (accessed by hitting Command + Shift + G in Finder, then typing "~/Library/Logs/iPhone Updater Logs" without the quotes in OS X; accessed by hitting the Windows key + R, then typing "%AppData%\Apple Computer\iTunes\iPhone Updater Logs" without the quotes in Windows) from one of these failed DFU attempts? The logs are numbered in chronological order. Please use a "paste" site like ghostbin.com or hastebin.com to host the text, and then link us here.